Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > BARCLONE > Software
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 11-05-2012, 10:31 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation Schematics, Anyone?

I think I've mentioned this before, but my other hobby is RC aircraft. Recently I've been bitten by the OT [old timer] bug, and this actually opened up three projects in a similar vein...

I'm starting to cut out the cardstock templates for a 96" Keil Kraft Falcon (aka Ben Shereshaw Cloud Cruiser). This is going to be a fun, though large, project requiring the mangling of a ton of balsa. Not a rocketry-related project, of course, but it helps to recharge the batteries...

This has provided me with the excuse to tackle a second project, namely to build a new encoder board for [drum roll, please] a Pro Line Challenger 5 case and sticks that have been sitting very patiently for the last 20+ years on a shelf. I'll post some pictures to show you the carnage...

This, now, opens up the third project, which I'm wondering if anyone here has tried out or even uses regularly. I'm working with the 1.7.2 beta of the gEDA schematic package. Trust me, it's quite definitely BETA, but it works well enough to use it for this project. This being the SOFTWARE section of our forum block, I figured it might be on-topic, at least a little...

The pictures below are:
  1. My trusty Futaba 7UAF, also 20+ years old, which is acting as the donor for one piece of the kit, and the star of this show, my Pro Line case and sticks...
  2. The insides of the Pro Line case, showing the foolishness of my behavior. I cut the old encoder out before realizing what I had. Didn't know the history...
  3. My circuit diagram for a truly retro encoder, based on Kraft and Heathkit designs...
  4. A revised circuit, eliminating one transistor...

BTW, I'm starting to post on the RCGroups forum, and I've shared this encoder project with them. RCGroups is another vBulletin site...
Attached Thumbnails
Click image for larger version

Name:  Dynamic Duo.JPG
Views: 156
Size:  233.6 KB  Click image for larger version

Name:  Gutless Wonder.JPG
Views: 154
Size:  260.3 KB  Click image for larger version

Name:  RetroClassic V11.jpg
Views: 168
Size:  54.0 KB  Click image for larger version

Name:  RetroClassic V12.jpg
Views: 162
Size:  50.1 KB  
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635
Reply With Quote
  #2  
Old 11-06-2012, 12:51 AM
BEC's Avatar
BEC BEC is offline
Master Modeler
 
Join Date: Feb 2009
Location: Auburn, Washington
Posts: 3,643
Default

RC Groups is huge..... you can spend hours just searching for stuff there. Hopefully you'll get some interest in this cool project.

I've been on RC Groups since before there were discussion boards - it all started with a magazine-ish site for what was then a very small niche: electric powered RC airplanes. Last check (a few moments ago) and I have nearly 12,900 posts there - and a number of articles on the Ezone.

But these days I spend much more time here (and on TRF) than on RCG....something about the rocketry bug biting harder the second time....
__________________
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE
Reply With Quote
  #3  
Old 11-06-2012, 04:40 AM
mycrofte's Avatar
mycrofte mycrofte is offline
Trust me, it'll work!
 
Join Date: Mar 2009
Location: Illinois
Posts: 1,840
Default

I have an old Heathkit setup much like that. I pull it out once in a while to charge it up and see if it still works.

Wish I cold have found the upgrade board for it.
___________________________________
Reply With Quote
  #4  
Old 11-06-2012, 03:29 PM
CPMcGraw's Avatar
CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Default

Quote:
Originally Posted by BEC
RC Groups is huge..... you can spend hours just searching for stuff there. Hopefully you'll get some interest in this cool project.


Already had one responder who said the first schematic had a necessary pulse shaping element; it has an integrator (RC low-pass filter) feeding the base of the third transistor. This helps remove unwanted harmonics above the pulse frequency.

RCGroups is huge, and I already have spent too many hours reading through some of the threads. If I go missing-in-action, that may be where I'm eventually found...
__________________
Craig McGraw

BARCLONE Rocketry -- http://barclone.rocketshoppe.com
BARCLONE Blogsite -- http://barclone.wordpress.com
BARCLONE Forum -- BARCLONE Forum

BARs helping BARs

SAM 0044
AMA 352635
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 09:50 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024